code: def main():
      parser = argparse.ArgumentParser(
          description="Perform surgery on a model.tar.gz archive",
          formatter_class=argparse.ArgumentDefaultsHelpFormatter,
      )
  
      parser.add_argument(
          "--input-file", required=True, help="path to input file"
      )
      parser.add_argument(
          "--editor",
          default=os.environ.get("EDITOR"),
          help="editor to launch, whose default value is `$EDITOR` the environment variable",
      )
      output = parser.add_mutually_exclusive_group()
      output.add_argument("--output-file", help="path to output file")
      output.add_argument(
          "--inplace",
          action="store_true",
          help="overwrite the input file with the modified configuration",
      )
      parser.add_argument(
          "-f",
          "--force",
          action="store_true",
          help="overwrite the output file if it exists",
      )
  
      args = parser.parse_args()
  
      if args.editor is None:
          raise RuntimeError(
              "please specify an editor or set the $EDITOR environment variable"
          )
  
      if (
          not args.inplace
          and os.path.exists(args.output_file)
          and not args.force
      ):
          raise ValueError(
              "output file already exists, use --force to override"
          )
  
      archive_file = cached_path(args.input_file)
      if not os.path.exists(archive_file):
          raise ValueError("input file doesn't exist")
      if args.inplace:
          output_file = archive_file
      else:
          output_file = args.output_file
  
      # Extract archive to temp dir
      tempdir = tempfile.mkdtemp()
      with tarfile.open(archive_file, "r:gz") as archive:
          archive.extractall(tempdir)
      atexit.register(lambda: shutil.rmtree(tempdir))
  
      config_path = os.path.join(tempdir, CONFIG_NAME)
      subprocess.run([args.editor, config_path], check=False)
  
      with tarfile.open(output_file, "w:gz") as tar:
          tar.add(tempdir, arcname=os.path.sep)
  
file_path: allennlp/allennlp/tools/archive_surgery.py
imports: import argparse
  import atexit
  import logging
  import os
  import shutil
  import subprocess
  import tempfile
  import tarfile
  from allennlp.common.file_utils import cached_path
  from allennlp.models.archival import CONFIG_NAME
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types